Fig. 1From: Show cards of the Global Physical Activity Questionnaire (GPAQ) – do they impact validity? A crossover studyStudy design. Group GPAQ+ 1st received the GPAQ with show cards (GPAQ+) after the first week and the GPAQ without show cards (GPAQ-) after week two. The procedure for Group GPAQ- 1st was the other way aroundBack to article page